Thanks Chappy!
Feels good to know that some of us! know their stuff.
great infos and I feel more confident now!
That's a big plus.
By the way I have the whole airplane apart and I realy think of changing all of them (spare and cap ridge) one after the other on that different wing.
I realy prefer to have things square on the whole machine.
I know that the two kinds of rivets we are talking about have different sheer resistance and beeing up there at five thousand feet, up and down in turbulances, I would not want to start wondering if I did the good thing while I had the whole airplane apart.
See what I mean.
A peace of mind.
Thanks again!
keep in touche!

1661-0410 or 1691-0410. Both are identicle rivets but the 1691-0410 has a different (gold tone) nail. I use both depending on what is available at the time.

Aircraft Spruce only sell the 1601-0410 rivet which has the smaller head that happens to be perfect for the installation of the Trailing Edge modification if you choose to do that mod, but does not have the standard head you want for everywhere else on the Lazair. So I'd suggest sticking with the two numbers at the top of this post and you will get the right rivet. They are considered low-profile headed Avex Rivets and match the best ones Ultraflight used...and the ones Chappy described above.

I sure enjoy admiring your work Shannon -- however one cannot look at your pictures without thinking Mylar -- coincidentally a news report about living in Baghdad outside the green zone; while reporting the events in Iraq-

A reporter described how they put Mylar on the inside of the windows in their apartment and or hotel rooms. The reporter had high praise for Mylar and its ability to minimize the amount of glass that entered the room after an explosion.

But after listening to the report, it certainly begs the question, where do they get their Mylar, what thickness is it, what kind of prices are that paying for it, and does anybody on this list, know anyone in the Baghdad area that may have some knowledge of the Mylar supply in Baghdad.

A product suddenly in high demand can see a spike in the street price and on the other hand when the demand falls there could be a surplus on the market. The kind of story that could certainly give rise to much speculation among Lazair owners.